Home / 3,711.30-5,123.44-2,870.10

Finding the Fourth Proportional to 3,711.30, 5,123.44 and 2,870.10

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Solution

The fourth proportional to 3,711.30, 5,123.44 and 2,870.10 is: 3,962.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.30 : 5,123.44 = 2,870.10 : x
  2. Step 2: Convert to fraction form
    3,711.30/5,123.44 = 2,870.10/x
  3. Step 3: Cross multiply
    3,711.30x = 5,123.44 × 2,870.10
  4. Step 4: Simplify right side
    3,711.30x = 14,704,785.14
  5. Step 5: Solve for x
    x = 14,704,785.14/3,711.30
  6. Step 6: Final answer
    x = 3,962.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.